/Engine/Source/Developer/AutomationDriver/Public/IDriverSequence.h
Queues the series of events to invoke mouse input for releasing the specified button. The button will not be pressed if it is not currently being pressed.
[IActionSequence](API\Developer\AutomationDriver\IActionSequence) & Release ( [EMouseButtons::Type](API\Runtime\ApplicationCore\GenericPlatform\EMouseButtons__Type) MouseButton )